Subaru LEGACY 2002 Quick Reference Index page 401

VEHICLE DYNAMICS CONTROL (VDC) SYSTEM
B: OPERATION PRINCIPLE OF VDC
1. OVERSTEER SUPPRESSION
When the vehicle starts to spin during cornering, the VDC control module (VDCCM) actuates the
brakes on the front and rear outer wheels. As a result, a force that counteracts the oversteer-caus-
ing yaw moment is generated so that the vehicle's behavior is stabilized.
(1) Braking force
(2) Oversteer-causing yaw moment
2. UNDERSTEER SUPPRESSION
When the vehicle starts to drift outward during cornering, the VDCCM causes the rear inner wheel
to be braked. As a result, a force that counteracts the understeer-causing yaw moment is gener-
ated so that the vehicle's behavior is stabilized.
(1) Braking force
(2) Understeer-causing yaw moment
(1)
(2)
(2)
(1)
VDC-3
VDC
B4H1634B
B4H1635B